A look at world's deadliest air disasters

June 3, 2012: Dana Air MD-83 jet crashes into residential area of Nigeria's largest city, Lagos, killing all 153 people aboard.

April 20, 2012: Bhoja Air Boeing 737 crashes in wheat fields near Islamabad, Pakistan while trying to land during thunder storm, killing 127 people.

Jan 9, 2011: Iran Air Boeing 727 breaks to pieces on impact in northwestern Iran. 77 dead.

May 12, 2010: Afriqiyah Airways plane en route to Tripoli, Libya, from Johannesburg, South Africa, crashes into the desert less than a mile from the runway, killing 103 people.

April 10, 2010: The plane of Polish President Lech Kaczynski crashes outside the western Russian city of Smolensk, killing all 96 aboard.